RESUMOA pesca de camarão sete-barbas Xiphopenaeus kroyeri é praticada em todo o litoral de São Paulo, necessitando de acompanhamento e gestão de suas capturas para garantir a manutenção dos estoques e a estabilidade da atividade. Este artigo visa contribuir para a gestão do recurso a partir da análise da dinâmica dos desembarques da espécie no litoral paulista entre 2000 e 2011. A atividade é realizada por uma frota denominada industrial, que engloba 15% das unidades produtivas e contribui com 47% da produção desembarcada, e por uma frota artesanal que participa com 85% do total de unidades produtivas e 53% do camarão descarregado. A análise da Captura por Unidade de Esforço (CPUE) mostrou estabilidade nesse indicador de abundância nos últimos anos. A diminuição do número de unidades da frota industrial, possivelmente devido à baixa rentabilidade econômica da pescaria, foi a causa mais provável para a estabilização da CPUE, ou o esforço de pesca ainda não excedeu o limite de sustentabilidade do estoque de sete-barbas no litoral paulista. A estabilidade observada no indicador de abundância nos últimos anos é algo muito promissor, e pode modificar a visão que diferentes instâncias de gestão pesqueira têm do status do recurso, com influência nas medidas de ordenamento. Medidas estas que, devido à contribuição da frota artesanal em número de unidades produtivas e total desembarcado, tem que ser estabelecida com a participação do setor artesanal, o que até o momento não tem ocorrido.Palavras chave: captura por unidade de esforço (CPUE); Xiphopenaeus kroyeri; pesca camaroeira; avaliação de estoques pesqueiros; manejo pesqueiro. CPUE STUDY ON SEABOB SHRIMP FISHERIES OF SÃO PAULO STATE FROM 2000TO 2011 ABSTRACTSeabob shrimp (Xiphopenaeus kroyeri) fishery is operated all over the coast off São Paulo State. For that reason the management and supervision of those catches is necessary in order to assure the maintenance of the stocks and the stability of that activity. This paper aims to contribute to the management of the resource through the analysis of the landing dynamics of the species caught off the coast of São Paulo State from 2000 to 2011. The activity is operated by a fleet considered industrial, that comprises 15% of the productivity units and contributes with 47% of the landing production, and by an artisanal fleet that corresponds to 85% of all the productivity units and 53% of the landed shrimp. The CPUE (Catch per Unit Effort) analysis shows stability through the abundance indicator in the last years. The decrease on the number of units from the industrial fleet, probably due to the fisheries low profitability, was the most probable cause for the CPUE stability, or the fishing effort has not exceeded the sustainability limit of the seabob shrimp stock off São Paulo State. The observed stability in the abundance indicator is a very promising factor, and it can modify the vision of the status of the resource in different sectors of the fisheries management. It can also influence management measures that must be ...
The amount of Uruguayan lobster Metanephrops rubellus landed in the state of São Paulo has shown considerable annual variation, at first due to ups and downs in the fishing sector interest. However, biological factors may also be influencing, since little is known about the biology of M. rubellus, and most of the available literature on Nephropidae refer to the Norwegian lobster (Nephrops norvegicus), which is morphologically and behaviorally similar. The morphometric relations found characterize the relative growth of M. rubellus as positive allometric, except for Ct x Cc x Pt and Pa, which showed isometric growth. The length at first maturity (L50) and the length frequencies distribution indicate that fisheries are focusing preferably on the portion of population able to reproduce, saving the immature ones. Due to this and to the biological and behavioral similarity between N. norvegicus and M. rubellus, fishing closure or minimum size of capture are not recommended as fishery management tools. Instead, additional research is proposed in order to define the distribution area and density of population, to establish fishing exclusion areas, which function as reservoirs for replenishment of stocks. It is also essential monitoring the population dynamics parameters, in order to control fishing effort.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.